Untitled

Data

libraries

#install.packages('catchment')
#library(catchment)
library(sf)

## Warning: package 'sf' was built under R version 4.0.5

## Linking to GEOS 3.9.1, GDAL 3.4.0, PROJ 8.1.1; sf_use_s2() is TRUE

library(leaflet)
library(dplyr)
#library(catchment)

start new

 rm(list=ls())

library(tidycensus)
library(tidyverse)

census_api_key("eba406410c653b81d6a795ac4e989221f7bdf302")

## To install your API key for use in future sessions, run this function with `install = TRUE`.

pop_county <- get_acs(geography = "tract", 
                  year = 2020,
                  variables = c(population = "B01001_001", 
                                mean_income = 'B19013_001'),
                  state = c("VA"),
                  county = c("Fairfax county"),
                  survey = "acs5",
                  output = "wide",
                  geometry = TRUE)

## Getting data from the 2016-2020 5-year ACS

## Downloading feature geometry from the Census website.  To cache shapefiles for use in future sessions, set `options(tigris_use_cache = TRUE)`.

#View(pop_county)

#tract shapes
tract_shapes <-   st_transform( tigris::tracts(state = "VA", county = "Fairfax county", class = "sf", year=2020), 4326)

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library(dplyr)
pal <- colorBin("RdYlBu", pop_county$mean_incomeE, bins = 10)

#create map
map <- leaflet(tract_shapes, options = leafletOptions(attributionControl = FALSE)) %>%
  addTiles() %>%
  addScaleBar("bottomleft") %>%
  addPolylines(data = tract_shapes, color = "black", opacity = 1, weight = 1) %>%
  addLayersControl(
    position = "topleft", overlayGroups = c("Population", "Income")
  )  %>%
  
  addPolygons(
    fillColor = colorNumeric("RdYlBu", pop_county$populationE)(pop_county$populationE),
    fillOpacity = 1, stroke = FALSE, group = "Population", label = pop_county$populationE
  ) %>%
  hideGroup("Population") %>%
  addControl("Income per census tract, Fairfax County, VA", "topright") %>%
  addLegend("bottomright", pal, pop_county$mean_incomeE, opacity = .7) %>%
  addPolygons(
    fillColor = pal(pop_county$mean_incomeE), fillOpacity = .7, weight = 1, color = "#000",
    highlightOptions = highlightOptions(color = "#fff"), group = "Income",
    label = paste0(
      "GEOID: ", pop_county$GEOID, ", Population: ", pop_county$populationE,
      ", Median Income: ", round(pop_county$mean_incomeE, 4)
    )
  )

map

leaflet() %>%
  addTiles(group = "OpenStreetMap") %>%
  addProviderTiles("Stamen.Toner", group = "Toner by Stamen") %>%
  addMarkers(runif(20, -75, -74), runif(20, 41, 42), group = "Markers") %>%
  addLayersControl(
    baseGroups = c("OpenStreetMap", "Toner by Stamen"),
    overlayGroups = c("Markers")
  )